Forgefix TechFast Self-Drilling Stitching Hex Screws are used to join metal roofing sheet panels together. They are self-drilling up to 2.5mm. The smaller No.1 drill tip can drill through 2 sheets then engage the threads to clamp the sheets together under the head.\nThey have an 8mm Hex head. The screws are fire and corrosion resistant, protected by Elementech corrosion resistant coating, salt spray tested to 1000 hours. Complies with EU Safety, Health and Environmental requirements.\nThey are supplied with 16mm EPDM rubber washers.\nThese Forgefix TechFast Self-Drilling Stitching Hex Screws have the following specification:\nSize: 6.3 x 22mm\nClamping Thickness: 11mm\nHead Type: 8mm Hex\nPack Size: 100\n\n--\nOur eBay Store\n\nPlease note: This item has a longer lead time for dispatch then normal as it's a non-stocked item that is ordered in, please see the estimated delivery date by eBay. We will of course ship the item sooner if possible.\n\nForgeFix TechFast Self-Drill Stitching ;